Motor Party!

it is like -19213 degrees outside, so i spent the day workin’ on my motor shield design and then had a MOTOR PARTY!

Click To Play

Here is a preview of the motor shield for Arduino that I’m workin’ on…it can drive 2 hobby servos as well as up to 2 steppers or 4 bidirectional DC motors.

  servo_init();
  servo1_enable();
  servo2_enable();
  motor_init();
  stepper1_enable();
  motor4_enable();

  while(1) {
    servo_setpos(1, -2000);
    servo_setpos(2, -2000);
    motor(4, FORWARD);
    for (i=0; i< 250; i++) {
      stepper(1, FORWARD, SINGLE);
      motor_setspeed(4,i);
      _delay_ms(5);
    }
    motor(4, BACKWARD);
    servo_setpos(1, 2000);
    servo_setpos(2, 2000);
    for (i=0; i< 250; i++) {
      stepper(1, BACKWARD, SINGLE);
      motor_setspeed(4,i);
      _delay_ms(5);
    }
  }

Filed under: arduino,kits,random — by ladyada, posted January 20, 2008 at 11:47 pm

Comments (11)

In the Adafruit Store:

PiBow VESA Mounting Layer Plate

Adafruit 1.2" 4-Digit 7-Segment Display w/I2C Backpack - Red

Graphic ST7565 Positive LCD (128x64) with RGB backlight + extras

11 Comments

1. 

   Will this be ready as a kit or schematic? It so when!!

   Comment by Robb Greathouse — January 21, 2008 @ 10:19 am

2. 

   Excellent!

   Comment by Chris — January 21, 2008 @ 11:48 am

3. 

   You can call these guys the ‘Gotham City Rollers”.

   Comment by TomP — January 21, 2008 @ 1:28 pm

4. 

   >drives 2 steppers
   unipolar or bipolar

   Comment by not_starman — January 21, 2008 @ 2:16 pm

5. 

   these steppers that i had in my STUFFBOX are unipolar, but from what i understand, the hardware for bipolar is the same so if i could get my hands on a bipolar stepper it would be straightforward to add code support

   Comment by ladyada — January 21, 2008 @ 3:00 pm

6. 

   me likey! i’d buy that for a dollar … or however many it costs

   Comment by unsped — January 21, 2008 @ 5:14 pm

7. 

   I was listening to ‘Pilgrims of the Mind – Something’s Pulling me Under’ on SomaFM’s groovesalad while watching this video. The flappy, buzzy motor sounds were in perfect time with the music. Happy++

   Comment by Jimmy — January 22, 2008 @ 6:04 pm

8. 

   ladyada — disassemble an old floppy drive. It will likely have bipolar. Or, if you can get your hands on a six-wire stepper, you can connect it up as either unipolar or bipolar. Great to see software for this otherwise orphaned shield board. Now … does it work with the boarduino (obviously not, but I thought I’d just ask that question. Maybe with the addition of a set of holes off to one side into which you could solder a boarduino? Or for that matter, just put the Atmel on the motor control board, with the six-pin angle connector and be done with it.)

   Comment by Russell Nelson — January 23, 2008 @ 12:17 am

9. 

   ladyada – Are schematic and pcb available? It’ll be great for my project and I’ll buy the pcb if available.Cool video.

   Comment by misan — January 23, 2008 @ 9:50 am

10. 

    I’ve been working on my own motor control interface for the Arduino, but it sucks so far because I’m not really a very good electrician at all, at all. Can’t wait to see what you came up with!

    Comment by dc — February 12, 2008 @ 2:52 am

11. 

    these are in the shop now…
    http://www.ladyada.net/make/mshield

    Comment by ladyada — February 26, 2008 @ 6:24 pm

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